Preparation and characterization of nanostructured TiO2/epoxy polymeric films

Research output: Contribution to journalResearch articleContributedpeer-review


  • Marco Sangermano - (Author)
  • Giulio Malucelli - (Author)
  • Ezio Amerio - (Author)
  • Roberta Bongiovanni - (Author)
  • Aldo Priola - (Author)
  • Anna Di Gianni - (Author)
  • Brigitte Voit - , Leibniz Institute of Polymer Research Dresden (Author)
  • Giancarlo Rizza - (Author)


Titania-containing coatings were prepared by cationic photopolymerization of an epoxy resin either by dispersion of preformed TiO2 nanoparticles or by their in-situ generation through a sol-gel dual-cure process. The kinetics of photopolymerization was evaluated by real-time FT-IR, studying the effect of the TiO2 concentration. The properties of cured films were investigated, showing an increase of hydrophilicity on the surface of the coatings with increasing TiO2 content. TEM analysis demonstrated that it is possible to achieve a significantly better control of the dispersion of the inorganic particles within the organic matrix by in-situ generation of TiO2, thus completely avoiding macroscopic phase separation and obtaining homogeneous, transparent coatings.


Original languageEnglish
Pages (from-to)517-523
Number of pages7
JournalMacromolecular materials and engineering
Issue number5
Publication statusPublished - 23 May 2006
Externally publishedYes

External IDs

Scopus 33744825216
ORCID /0000-0002-4531-691X/work/148607722



  • Cationic photopolymerization, Dual-cure, Sol-gel process, Surfaces, Titania nanoparticles